JPH0443885A - Rotary oilless compressor - Google Patents
Rotary oilless compressorInfo
- Publication number
- JPH0443885A JPH0443885A JP15001590A JP15001590A JPH0443885A JP H0443885 A JPH0443885 A JP H0443885A JP 15001590 A JP15001590 A JP 15001590A JP 15001590 A JP15001590 A JP 15001590A JP H0443885 A JPH0443885 A JP H0443885A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- compressor
- main body
- stopped
- cooler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は空冷式オイルフリースクリユー圧縮機に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air-cooled oil-free screw compressor.
特開昭６２−８５］９４号公報に記載のように、空冷式
のオイルフリースクリユー圧縮機では小形機種について
は圧縮機本体の上部にオイルクーラが配置されることは
なく、本発明のような特有の構造を特に設ける必要はな
かった。As described in Japanese Unexamined Patent Application Publication No. 62-85]94, small-sized air-cooled oil-free screw compressors do not have an oil cooler disposed above the compressor body; There was no need to provide any special structure.
従って、本発明は特に大型の空冷式オイルフリースクリ
ユー圧縮機に有効な発明である。Therefore, the present invention is particularly effective for large air-cooled oil-free screw compressors.
本発明はオイルフリースクリユー圧縮機に於いて運転中
は非接触タイプの油切りシールで潤滑油が圧縮機本体の
圧縮室内の中に油分が入いらない構造としているが、停
止時にこのシール機構がなくなるため、また、大型の空
冷タイプのオイルフリースクリユー圧縮機に使用される
オイルクーラは大型となり、このため、オイルクーラの
位置が圧縮機本体の位置よりも上に配置される。このた
め圧縮機停止時に、このオイルクーラの上部に溜つてい
る油が、自重により圧縮機本体側へ逆流し。The present invention has an oil-free screw compressor that uses a non-contact type oil drain seal to prevent lubricating oil from entering the compression chamber of the compressor body during operation, but when the compressor is stopped, this seal mechanism In addition, the oil cooler used in a large air-cooled oil-free screw compressor becomes large, and for this reason, the oil cooler is located above the compressor body. Therefore, when the compressor is stopped, the oil accumulated at the top of the oil cooler flows back toward the compressor body due to its own weight.
オイルフリーであるべき圧縮室の中に入いり込む危険性
がある。これを防ぐために圧縮機本体の直前の油配管よ
り一部油を回収する配管を設け、圧縮機の停止時にオイ
ルフリースクリユー圧縮機の中に油が逆流しないように
したことを目的とする。There is a danger that oil may get into the compression chamber, which should be oil-free. In order to prevent this, a pipe is provided to collect some of the oil from the oil pipe immediately in front of the compressor main body, and the purpose is to prevent oil from flowing back into the oil-free screw compressor when the compressor is stopped.
上記目的を達成するために、本発明は圧縮機本体の給油
配管の位置を変更し、圧縮機本体の給油配管の直前部分
を分岐管とし、この一部を圧縮機本体より下部に連結す
る配管とした。この配管は運転中はギヤケース内の軸受
、ギヤを潤滑させるための油配管として使用し、圧縮機
が停止時には圧縮機本体へオイルクーラの方から逆流し
てくる油を本体側へ行かないようにし、逆流した油をこ
の油配管を使用してギヤケースの方へ戻るようにし、停
止時にもオイルクーラの油がオイルフリースクリユー圧
縮機の本体側へ戻るのを防止したものである。In order to achieve the above object, the present invention changes the position of the oil supply pipe of the compressor main body, makes the part just before the oil supply pipe of the compressor main body a branch pipe, and connects this part to the lower part of the compressor main body. And so. During operation, this piping is used as an oil piping to lubricate the bearings and gears inside the gear case, and when the compressor is stopped, it is used to prevent oil flowing back from the oil cooler into the compressor body. This oil piping is used to direct the backflowing oil back toward the gear case, thereby preventing the oil in the oil cooler from returning to the main body of the oil-free screw compressor even when the machine is stopped.
本発明は圧縮機本体への油配管を分岐することにより、
運転中は軸受、ギヤの潤滑用として油配管を使用し、停
止時には圧縮機本体より下部のギヤケースへオイルクー
ラ及びオイルクーラと圧縮機本体とを連結する油配管中
に残る油をギヤケースに戻し、停止時に、オイルフリー
スクリユー圧縮機の圧縮室内に油が入いるのを防止する
ものである。By branching the oil piping to the compressor main body, the present invention
During operation, oil piping is used to lubricate the bearings and gears, and when the compressor is stopped, the oil remaining in the oil cooler and the oil piping that connects the oil cooler and the compressor body is returned to the gear case from the compressor body to the lower gear case. This prevents oil from entering the compression chamber of the oil-free screw compressor when it is stopped.
本発明の一実施例を第１図ないし第３図により説明する
。An embodiment of the present invention will be described with reference to FIGS. 1 to 3.
第１図に本発明の油配管系統を示す。FIG. 1 shows the oil piping system of the present invention.
第２図に圧縮機本体回りの油配管系統を示す。Figure 2 shows the oil piping system around the compressor main body.
第３図に圧縮機本体の断面図を示す。FIG. 3 shows a sectional view of the compressor main body.
圧縮空気は吸込絞り弁８より吸入され圧縮機本体１で所
定の圧力まで昇圧され吐出される。Compressed air is sucked in through the suction throttle valve 8, raised to a predetermined pressure in the compressor body 1, and then discharged.
圧縮機本体は第３図に示す構造となっており、ピニオン
ギヤ２０より駆動系が伝達され、雄ロータ９が回転する
、雌ロータ１０の回転は雄タイミングギヤ２６と雌タイ
ミングギヤ１８により駆動され雄ロータ９と雌ロータ１
０は非接触によりオイルフリーエアを圧縮させる。雄ロ
ータ９は雄ロータ吸入側軸受２１と雄ロータ吐出側軸受
２４゜２５で支えられ回転する６同様に雌ロータ１０も
雌ロータ吸入側軸受２１と雌ロータ吐出側軸受１６．１
７で支えられている。The compressor main body has a structure shown in FIG. 3. A drive system is transmitted from a pinion gear 20, and a male rotor 9 rotates.The rotation of a female rotor 10 is driven by a male timing gear 26 and a female timing gear 18. Rotor 9 and female rotor 1
0 compresses oil-free air without contact. The male rotor 9 is supported and rotated by a male rotor suction side bearing 21 and a male rotor discharge side bearing 24.25 Similarly, the female rotor 10 is also supported by a female rotor suction side bearing 21 and a female rotor discharge side bearing 16.1.
It is supported by 7.
各部軸受及びギヤには油潤滑されており、この油を圧縮
室内に入れないため油切り装置１３゜１５．２２．２３
によりシールしオイルフリーエアが圧縮されるようにな
っている。Each bearing and gear is lubricated with oil, and in order to prevent this oil from entering the compression chamber, an oil drain device 13゜15.22.23
This seals the air and compresses oil-free air.
次に、第１図により油配管系統について説明する。ギヤ
ケース３の下部に油が溜められておりオイルポンプ４に
より油圧が上げられオイルクーラ２により冷却された油
は圧縮機本体の軸受２１゜２４．２５，１４，１６．１
７及びギヤ２０゜１８．２６を潤滑し、ギヤケーシング
内に回収される。Next, the oil piping system will be explained with reference to FIG. Oil is stored in the lower part of the gear case 3, the oil pressure is raised by the oil pump 4, and the oil is cooled by the oil cooler 2.
7 and gear 20°18.26 and is collected in the gear casing.
一方、圧縮機本体１にはオイルクーラ３より油配管５を
通して給油される。この場合、オイルクーラ２の位置が
圧縮機本体１よりも高い位置にあるため、停止時オイル
クーラ２側より油が圧縮機本体１の方へ逆流してくる。On the other hand, the compressor main body 1 is supplied with oil from an oil cooler 3 through an oil pipe 5. In this case, since the oil cooler 2 is located higher than the compressor main body 1, oil flows back toward the compressor main body 1 from the oil cooler 2 side when the engine is stopped.
この逆流してくる油を圧縮機本体内に入いらないように
するために油配管に分岐管７を設け、この下部より油回
収配管６をギヤケーシング３に連結し、この油回収配管
６により、逆流してくる油をギヤケーシング３の中に回
収するものである６
第３図に示す圧縮機本体１の油切りシール機場は非接触
シールを使用しているため運転中のみ、シールの機能を
もっており、停止中には油の浸入を防止する機能をもっ
ていないためである。また、油回収配管６は運転中には
ギヤケーシング３内の軸受、ギヤ（図示せず）の潤滑に
使用しており、運転中に無駄に油を逃がすようなことの
ないようにし、停止時のみ油の逆流してくるものをギヤ
ケーシング３内に回収し、オイルフリースクリユー圧縮
機の雄口〜夕９及び雌ロータ８の中の圧縮室内に油が混
入するのを防止させるものである。In order to prevent this backflowing oil from entering the compressor main body, a branch pipe 7 is provided in the oil pipe, and an oil recovery pipe 6 is connected to the gear casing 3 from the lower part of the branch pipe 7. This device collects the oil flowing back into the gear casing 3.6 The oil drain seal station of the compressor body 1 shown in Fig. 3 uses a non-contact seal, so it only has a sealing function during operation. This is because it does not have a function to prevent oil from entering while it is stopped. In addition, the oil recovery pipe 6 is used to lubricate the bearings and gears (not shown) inside the gear casing 3 during operation, and is designed to prevent oil from escaping unnecessarily during operation. This system collects backflowing oil into the gear casing 3 and prevents oil from entering the compression chambers in the male and female rotors 8 and 9 of the oil-free screw compressor. .
本発明によるとオイルフリースクリユー圧縮機の圧縮機
本体より上部に配置されるオイルクーラをもつ構造に於
いて、停止時、オイルクーラから油が逆流し、圧縮機本
体内に入いるのを防止し、常に、オイルフリースクリユ
ー圧縮機としての機能を保つのに大きな効果がある。According to the present invention, in the structure of an oil-free screw compressor having an oil cooler placed above the compressor body, oil is prevented from flowing backward from the oil cooler and entering the compressor body when stopped. This has a great effect on maintaining the function of an oil-free screw compressor at all times.
第１図は本発明の一実施例の油配管系統図、第２図は圧
縮機本体回りの油配管系統図、第３図は、圧縮機本体の
断面図を示す。FIG. 1 is an oil piping system diagram of an embodiment of the present invention, FIG. 2 is an oil piping system diagram around the compressor main body, and FIG. 3 is a sectional view of the compressor main body.
Claims (1)
縮機本体より上部に配置されたオイルクーラ及びこれら
を連結する油配管から構成され、前記圧縮機の停止と同
時に油を送油するオイルポンプが停止するが、前記オイ
ルクーラ及び前記オイルクーラと前記圧縮機本体とを連
結する油配管に残つた油が自重により前記圧縮機本体の
中へ逆流するのを防ぐために前記圧縮機本体の直前の給
油配管より一部バイパス配管を設け、この配管により前
記圧縮機本体の上部に溜つている油を前記バイパス配管
から逃がし、前記オイルフリースクリューとして前記圧
縮機本体内へ停止時、油が逆流するのを防いだことを特
徴とする回転形無給油式圧縮機。1. In an air-cooled oil-free screw compressor, there is an oil pump that is composed of an oil cooler placed above the compressor body and oil piping that connects these, and that pumps oil at the same time as the compressor is stopped. However, in order to prevent oil remaining in the oil cooler and the oil pipes connecting the oil cooler and the compressor main body from flowing back into the compressor main body due to its own weight, oil is supplied immediately before the compressor main body. A bypass pipe is provided in a part of the pipe, and this pipe allows oil accumulated in the upper part of the compressor body to escape from the bypass pipe, and as the oil-free screw, prevents oil from flowing back into the compressor main body when the compressor is stopped. A rotary oil-free compressor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15001590A JP2766045B2 (en) | 1990-06-11 | 1990-06-11 | Rotary oilless compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15001590A JP2766045B2 (en) | 1990-06-11 | 1990-06-11 | Rotary oilless compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0443885A true JPH0443885A (en) | 1992-02-13 |
| JP2766045B2 JP2766045B2 (en) | 1998-06-18 |
Family
ID=15487616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15001590A Expired - Lifetime JP2766045B2 (en) | 1990-06-11 | 1990-06-11 | Rotary oilless compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2766045B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435649B2 (en) | 1991-01-11 | 2002-08-20 | Canon Kabushiki Kaisha | Ink jet recording apparatus |
| CN114542464A (en) * | 2022-01-27 | 2022-05-27 | 宁波英德菲尔机械科技有限公司 | Dry type screw compressor with upper connecting port |
-
1990
- 1990-06-11 JP JP15001590A patent/JP2766045B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435649B2 (en) | 1991-01-11 | 2002-08-20 | Canon Kabushiki Kaisha | Ink jet recording apparatus |
| CN114542464A (en) * | 2022-01-27 | 2022-05-27 | 宁波英德菲尔机械科技有限公司 | Dry type screw compressor with upper connecting port |
| CN114542464B (en) * | 2022-01-27 | 2024-03-26 | 宁波英德菲尔机械科技有限公司 | Dry screw compressor with upper connecting port |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2766045B2 (en) | 1998-06-18 |
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